SCIN138 Week 8 Final Exam (timed and single access) Questions and Answers 2023

SCIN138 Week 8 Final Exam (timed and single access) Questions and Answers 2023. Where do we generally find the most quantity of explosive volcanic eruptions?  A. Transform plate boundary  B. Ocean island hotspots  C. Subduction zone boundary  D. Mid-oceanic ridges  E. Divergent plate boundary Question 4 of 50 2.0/ 2.0 Points The number one factor causing landslides is (are) _____.  A. freeze-thaw cycles  B. precipitation  C. volcanic eruptions  D. earthquakes  E. glaciation Question 5 of 50 2.0/ 2.0 Points In the scientific method, a hypothesis is _______, and a theory is _________.  A. a tentative untested explanation ; well tested and widely accepted explanation  B. an educated guess ; a law that has been universally accepted by the scientific community  C. a tentative untested explanation ; a law that has been universally accepted by the scientific community  D. an objective observation ; an idea that hasn’t been proven  E. an educated guess ; a tentative untested explanation Feedback:01.1 Question 6 of 50 0.0/ 2.0 Points Where would you expect both shallow and deep earthquakes in which the deeper earthquakes are located farther inland?  A. At a convergent plate boundary such as along the west coast of South America.  B. At a transform boundary along the San Andreas fault in California.  C. At a divergent plate boundary in the middle of the Atlantic Ocean.  D. At a divergent plate boundary in the middle of a continental plate such as Africa’s Great Rift Valley.  E. At a transform plate boundary anywhere in the world. Question 7 of 50 2.0/ 2.0 Points Shield volcanoes consist of _________.  A. Explosive pyroclastic material and low viscosity lava flows.  B. Alternating layers of cinders and ash embedded in silica-rich lava flows.  C. Mostly low viscosity basalt flows with a lower silica content.  D. Alternating layers of silica-rich rocks and intrusive igneous rocks such as basalt.  E. A combination of granitic lava and pyroclastic material with some rhyolite. Question 8 of 50 2.0/ 2.0 Points Where is the top of the asthenosphere closest to the earth’s surface?